When I run the game appears this error
player.lua:85: bad argument #2 to 'draw' (Quad expected,
Hi Coal_boy! Sorry to hear that you're getting an error. I've noticed that if the game's delta time is set for a particularly slow computer, sometimes the game's logic jumps past sprites entirely and searches for quads that don't exist. I did my best to avoid this issue on most computers, but apparently the bug still exists!
Are you running the game on a relatively new computer, in a commonly-used browser like Firefox or Chrome?